An issue has been found in PowerDNS Recursor before 4.1.18, 4.2.x before 4.2.5, and 4.3.x before 4.3.5. A remote attacker can cause the cached records for a given name to be updated to the Bogus DNSSEC validation state, instead of their actual DNSSEC Secure state, via a DNS ANY query. This results in a denial of service for installation that always validate (dnssec=validate), and for clients requesting validation when on-demand validation is enabled (dnssec=process).
Published 2020-10-16 06:15:12
Updated 2022-06-15 03:15:37
Source MITRE
View at NVD,   CVE.org
Vulnerability category: Denial of service

Threat overview for CVE-2020-25829

Top countries where our scanners detected CVE-2020-25829
Top open port discovered on systems with this issue 53
IPs affected by CVE-2020-25829 2,314
Threat actors abusing to this issue? Yes
Find out if you* are affected by CVE-2020-25829!
*Directly or indirectly through your vendors, service providers and 3rd parties. Powered by attack surface intelligence from SecurityScorecard.

Exploit prediction scoring system (EPSS) score for CVE-2020-25829

0.36%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 69 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2020-25829

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
5.0
MEDIUM AV:N/AC:L/Au:N/C:N/I:N/A:P
10.0
2.9
NIST
7.5
HIGH CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
3.9
3.6
NIST

References for CVE-2020-25829

Products affected by CVE-2020-25829

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